›› 2015, Vol. 34 ›› Issue (6): 1-7.doi: 10.3780/j.issn.1000-758X.2014.06.001

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Variable Universe Self-tuning Fuzzy PID Controller of Attitude Maneuver for Flexible Spacecraft

WEI  Feng-Mei, ZHAO  Yu-Shan, SHI  Peng   

  1. (School of Astronautics, Beihang University, Beijing 100191)
  • Received:2014-05-15 Revised:2014-06-16 Published:2014-12-25

Abstract: The attitude dynamical equations of flexible spacecraft with solar panels were established,and the attitude kinematic equations were described by modified Rodrigues parameters (MRPs)in orderto preventthe singularity of thelarge angle maneuver. A variable universeself-tuning fuzzy PID controller was proposed for model uncertainties and environmental disturbances. A new shrinkable factor was designed, and it was easy to calculate and could achieve the accuracy. Numerical simulation based on Matlab/Simulink shows that the response of the variable universeself-tuning fuzzy PID controller are 350s fasterthan that ofthe conventional PID and fuzzy PID controllers,and thatit has no vershoot and can realize the effective control of attitude maneuver and effectively suppress the vibration of solar panels.

Key words: Flexible spacecraft, Attitude maneuver, Variable universe, Self-tuning, Fuzzy